Lung Allograft Rejection Gene Expression Observational (LARGO) Study (LARGO)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00751309
Recruitment Status : Terminated (Restructuring and refocus of company.)
First Posted : September 11, 2008
Last Update Posted : December 18, 2008
Information provided by:

September 10, 2008
September 11, 2008
December 18, 2008
April 2004
January 2009   (Final data collection date for primary outcome measure)
  • Rejection episodes of at least moderate histologic grade which resulted in treatment of the patient with additional corticosteroids, anti-T cell antibodies, or total lymphoid irradiation. [ Time Frame: Scheduled clinic visit ]
  • Obliterative Bronchiolitis diagnosed pathologically by biopsy or by a progressive decline in pulmonary function tests consistent with a diagnosis of Bronchiolitis Obliterans Syndrome (BOS). [ Time Frame: Scheduled clinic visit ]
  • Allograft function as determined via pulmonary function tests. [ Time Frame: Scheduled clinic visit ]
  • The absence of histologic rejection and normal or unchanged allograft function. [ Time Frame: Scheduled clinic visit ]
  • Documented CMV infection by culture, histology, or PCR, and at least one clinical sign or symptom of infection. [ Time Frame: Scheduled clinic visit ]
  • Infections other than CMV, e.g. bacterial, other viral, and fungal infections. [ Time Frame: Scheduled clinic visit ]
Same as current
Complete list of historical versions of study NCT00751309 on Archive Site
  • Rejection of mild to moderate histologic severity prompting augmentation of the patient's chronic immunosuppressive regimen. [ Time Frame: Scheduled clinic visit ]
  • Allograft dysfunction during the study period. [ Time Frame: Scheduled clinic visit ]
  • Rejection of mild to moderate severity with allograft dysfunction prompting plasmapheresis or a diagnosis of "humoral" rejection. [ Time Frame: Scheduled clinic visit ]
  • Lymphoproliferative disorder (aka post-transplant lymphoma). [ Time Frame: Scheduled clinic visit ]
  • Graft Failure or Retransplantation. [ Time Frame: Scheduled clinic visit ]
  • All cause mortality. [ Time Frame: Scheduled clinic visit ]
Same as current
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Lung Allograft Rejection Gene Expression Observational (LARGO) Study
Lung Allograft Rejection Gene Expression Observational (LARGO) Study
The objective of the LARGO Study protocol is to collect peripheral blood samples, select associated lung biopsy pathology slides, and clinical data from lung transplant recipients to perform molecular analyses in association with the study endpoints. The primary objective is to use gene expression profiling of peripheral blood mononuclear cells to differentiate between the absence and presence of acute cellular rejection. The secondary objectives are to use other genomic and proteomic technologies to analyze RNA and protein in blood samples in relation to related clinical conditions. The overall goal is to apply novel molecular insights in the development of non-invasive molecular diagnostic tests for lung transplantation.

LARGO is a prospective, multi-center, international observational study with participating centers in the United States, Canada and Europe. The target enrollment for study completion is 2,100 subjects.

At each study visit, blood specimens are collected from subjects, processed and stored in the sample archive, with corresponding patient information entered into the clinical database. The analysis plan for each study objective includes a defined sample selection protocol that stipulates the inclusion and exclusion criteria for both patients and samples, and also the required number of blood specimens for the molecular analyses to achieve statistical significance.

The diagnosis and treatment of acute cellular rejection remains a clinical management priority that is currently based on transbronchial biopsy. Gene expression profiling is a technology based on molecular biology that measures changes in the RNA levels of different genes expressed by circulating mononuclear cells in the peripheral blood. A key goal of the project is to use gene expression profiling to differentiate between the absence and presence of lung allograft acute cellular rejection, with the aim of using this novel information to develop a non-invasive diagnostic testing alternative.

Observational Model: Cohort
Time Perspective: Prospective
Not Provided
Retention:   Samples Without DNA
venous blood plasma
Non-Probability Sample
Lung and heart-lung transplant recipients who will undergo transbronchial biopsy.
  • Graft Rejection
  • Lung Disease
Other: Non-interventional
Post-transplantation observational study
Lung and heart-lung transplanted subjects.
Intervention: Other: Non-interventional
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
January 2009
January 2009   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Lung and heart-lung transplant recipients who consent to participate and have transbronchial biopsy at the enrolling center during the study period

Exclusion Criteria:

Sexes Eligible for Study: All
Child, Adult, Senior
Contact information is only displayed when the study is recruiting subjects
Austria,   Canada,   Germany,   United Kingdom,   United States
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Kenneth C. Fang, MD, XDx, Inc.
Not Provided
Study Director: Kenneth C. Fang, MD XDx, Inc.
December 2008